Rotary steam-motor.



No. 7|5,l52. y Patented Dec. 2, |902.

H. ROESKE.

ROTARY STEAM MOTOR.

A (Application led Mar, 13, 1902.)

(Nu Model.)

mgl/lla l AToHA/EYS UNITED* STATES NPATENT OEEICE.

HENRY ROESKE, OF PHILADELPHIA, PENNSYLVANIA.

ROTARY ST-EAM-M OTO R.

SPECIFICATION forming part of Letters Patent No. 715,152, dated December2, 1902.

Application led March 13. 1902. Serial No. 98,000. (No model.)

To @ZZ whom, it ntcty concern;

Be it known that I, HENRY RoEsKE,of Phil` adelphia, in the county ofPhiladelphia. and State of Pennsylvania, have invented a new and usefulImprovement; in Rotary Steam- Motors, of which the following is aspecification.

My invention is in the nature of a rotary steam-motor. It belongs tothat class of rotary engines known as impact-engines, in which jets orsheets of steam escaping from one surface are allowed to impinge uponanother surface to produce either a direct or reactionary rotarymovement in one of the two surfaces. In my invention the steam issuesfrom a rotary moving surface and impinges upon a stationary one toimpart a reactionary rotary' movement to the surface carrying the steampassage-ways; and it consists in the peculiar construction andarrangement of a rotating head carrying live-steam passage-ways on oneside and exhaust-steam passage-ways on the other side, both opening outhe periphery of the head, and which head is located Within an annularstationary casing having teeth on its inner periphery, against which theescaping jets of steam from'the head impinge to produce a reactionaryrotary movement of the head.

It also consists in the special construction and arrangement of thejournals of the head, one of which is constructed to form the inletportsand the other the outlet-ports, as will be hereinafter more fullydescribed with reference to the drawings, in which- Figure 1 is avertical longitudinal section. Fig. 2 is a side elevation, partly insection; and Fig. 3 is a plan View.

In the drawings, A represents the revolving head, which in general shapeis double conical.' In one side of it are formed the livesteam passagesct a, which extend from one journal and open on the periphery, and onother side of it are formed the exhaust-steam passages a' ct', whichopenon the periphery in alternate position with the live-steam passages andextend thence to and through the exhaust-port a3 on the other journal.Each live-steam passage-way has its corresponding exhaust passage-wayimmediately behind it and separated only byarelatively thin Wall w.

Surrounding the head A there is a closelyfitting annular casingconsisting of a ring B, having on its inner periphery teeth b2, againstwhich the jets of steam impinge, and two fiat rings B B', which aresecured by bolts b to the sides of ring B, and which two side ringsextend inwardly and lap over the outer portion of the head A, which isturned true to lit said rings. The casing B B B is stationary, itsmiddle portion B being formed with legs b b', which are firmly bolted toany suitable support.

The outer ends of the double-conical head A are turned to formjournal-bearings, which are carried in boxes in the upright standards CC', which latter are also bolted to a suitable support at the bottom.

VD is the inlet steam-pipe, which is tapped through the top of thejournal-box and opens into a slot a2, formed in the hollow journal ofthe revolving head and in open communication with the live-steampassage-Ways a a in the head.

From the pipe D a branch pipe D/ extends downwardly to the side of thejournal-box and opens into the end of the same and also in the hollowjournal. Both the pipes D and D have valves cland d', respectively, bywhich the admission of steam can be controlled. As the head A rotates,its inlet-port a2 takes steam at intervals only, and thus has thefunction of a cut-ott.

Oil is supplied to all the bearings through suitable holes. The journalsare thus supplied through holes o and the peripheral surfaces of thehead through the holes p.

The operation of my rotary motor is as follows: Steam being admittedthrough the valve el, it passes up the channel-ways`a a in the head andimpinging against the teeth b2 of the stationary case produces areactionary strain and rotary motion ofthe head. The

1steam issuing through any passage-way a passes the edge of the wall wand is immediately discharged into the juxtaposed exhaust passage-Way a'behind the passage -way a and thence is led to the exhaust a3 in theother journal ofthe head. As the casing B B is held stationary, itiwillbe seen that the reactionary effect of the steam-blasts impingingagainst the teeth of the casing causes the head A to continuously rotatein a backward direction. The slot a2, it will be seen, deliv- IOO erssteam to the rotating head from the steampipe with a cut-oft' action inan intermittent way, and this allows the impulses of steam to actexpansively in the widening 'throats of the ports as it passes to andissues at the periphery, When steam is cut off, if it should happen thatthe ind notion-journal of the head should come to a stop with the slota2 out of registration with the steam-pipe, then in order to start upthe engine again the valve d is opened and steam admitted to the endofthe hollow journal through the pipe D. After the head starts torevolve steam is cut 0E at d and the valve d opened, and then steamcontinues to be admitted through the port a2 in an intermittent manneragain.

The live-steam and .exhaust passage-ways or ports in the revolving headincrease in size from the journals to the periphery of the head. Thisgives large openings opposite the teeth or blades of the casing to allowthe steam to quickly issue and escape. It also allows the steam toexpand somewhat as it enters.

I have shown my rotary motor on a horizontal axis and rotating ,in avertical plane; but it will be understood that it may as well be turnedso as to let the axis of rotation be vertical and the plane of the headhorizontal.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is 1 1. A rotary impact-motor, comprising astationary annular casing havingimpact-surfaces for steam on its innerperiphery and a rotary head arranged within the same and havinginduction-ports in one journal, and an exhaust-port in the otherjournal, said induction and exhaust ports opening on the peripheryalternately with each other substantially as described.

2. A rotary impact-motor, comprisinga stationary annular casing havingimpact-sur- .faces for steam on its inner periphery, and a rotary headof a substantially double-conical shape having its greatestcircumference arranged within the said casing and having' formed in itstapering end portions steani inlet and exhaust ports opening alternatelyon the periphery and with the steam-inlet ports extended to and openingthrough one journal and the exhaust-ports extended to and openingthrough the other journal substantially as described.

3. A rotary impact-motor comprising a stationary annular casing havingimpact-surfaces for steam on its inner periphery, and a rotary headhaving on one side live-steam ports extending from one journal to theperiphery, and on the other side exhaust-steam ports extending from theperiphery to the other journal, said ports being arranged to alternatewith each other and increasing in size from the journal to the peripherysubstantially as described.

4. A rotary impact-motor comprising a stationary casing and a rotatinghead within the same having alternating inlet and exhaust portsextending respectively to the journals the inlet-journal being formedwith an opening to intermittently take steam and allow it to expand inthe ports of the rotating head substantially as described.

5. A rotary impact-motor comprising a stationary casing, and a rotatinghead within the same having at one end a hollow journal having aninlet-slot on the side and also an open end, a steam-pipe with valveopening into range of said slot, and a branch steampipe withvalveopening into the end of the hollow journal substantially as shown anddescribed.

6. A rotary impact-motor comprising an annular casing consisting of amiddle ring B with feet b b and two side rings B B bolted to this middlering, a rotating head having inlet and exhaust ports opening on theperiphery, and stationary bearings for each end of the headsubstantially as shown and described.

HENRY ROESKE.

Witnesses:

THEO. J. ETTER, JOHN J. CAMPBELL.

